BEKA BA314NG, Руководство пользователя

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9.3.6 Setpoint adjustment:
5P1.
x &
5P2.
x
The speed alarm setpoints
5P1.5peed
and
5P2.5peed
may be positioned anywhere between
0000000
and
9999999
, and the run-time alarm setpoint
5P1.Hour5
and
5P2.Hour5
anywhere between
0000.0
and
9999.9
hours.
All the setpoints are adjusted in the same way, for
example, to adjust the setpoint of Alarm 1 which has
been configured to operate on the speed display.
Using the
&
or
*
push button select
5P1.5peed
in
the
AL1
sub-menu and press
(
which will reveal the
existing setpoint with one digit flashing. The required
setpoint can be entered using the
&
or
*
push
button to adjust the flashing digit and the
(
button to
transfer control to the next digit. When set as
required press
)
to enter the value and return to the
5P1.5peed
prompt in the alarm 1 sub-menu.
9.3.7 Alarm function:
Hi . Lo
Alarm 1 and Alarm 2 are totally independent, both
may be Hi or Lo, or one may be conditioned as a Hi
alarm and the other as a Lo alarm.
Using the
&
or
*
push button select
Hi . Lo
from the
selected alarm sub-menu and press
(
to check or
change the function. The
&
or
*
push button will
toggle the alarm function between
Hi
and
Lo
, when
set as required, press the
)
button to return to the
Hi . Lo’ prompt in the alarm sub-menu.
9.3.8 Alarm output status:
no . nC
Each single pole alarm output may be open or closed
in the non-alarm condition. When the BA314NG
power supply is turned off or disconnected, the alarm
output(s) will open irrespective of whether normally
open or normally closed outputs have been selected.
Therefore, when designing an alarm system normally
closed
nc
should be selected so that the output opens
when an alarm occurs or if the power supply fails.
Using the
&
or
*
push button select
no . nC
from the
selected alarm sub-menu and press
(
to check or
change the function. The
&
or
*
push button will
toggle the contact status between
no
and
nC
, when set
as required, press the
)
button to return to the
no . nC
prompt in the alarm sub-menu.
9.3.9 Hysteresis:
H5tr
Hysteresis is only available on speed alarms so the
H5tr
function only appears in the configuration sub-
menu when alarm
tYPE
has been set to
5PEEd
.
During configuration hysteresis is shown in the units
of
5PEED
previously configured for the Tachometer
display.
Using the
&
or
*
push button select
H5tr
in the
selected alarm sub-menu and press
(
which will
reveal the existing hysteresis with one digit flashing.
The required hysteresis can be entered using the
&
or
*
push button to adjust the flashing digit and
the
(
button to transfer control to the next digit.
When set as required press
)
to enter the value
and return to the
H5tr
prompt in the alarm sub-
menu.
e.g. A Tachometer configured to display a rotational
speed of 0 to 500 RPM, with a high alarm set at
400 RPM and hysteresis of 10 RPM will perform as
follows:
The high alarm will be activated when speed
equals or exceeds 400 RPM, but will not reset
until the speed falls below 390 RPM.
9.3.10 Alarm delay:
dELA
This function enables activation of the alarm output
to be delayed for a fixed time following the alarm
condition occurring. The delay can be set in 1
second increments up to 3600 seconds. If a delay is
not required zero should be entered.
To adjust the delay select
dELA
using the
&
or
*
push button in the selected alarm sub-menu and
press
(
which will reveal the existing delay time in
seconds with one digit flashing. The required delay
time can be entered using the
&
or
*
push button
to adjust the flashing digit and the
(
button to
transfer control to the next digit. When set as
required press
)
to enter the value and return to
the
dELA
prompt in the alarm sub-menu. The alarm
annunciator will start flashing immediately an alarm
condition occurs and will continue for the delay time,
after which the alarm output will be activated and the
alarm annunciator will be permanently activated.
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